Seca 799 User manual

seca 799

Model 799 15
GB
Full certification
In seca products you are purchasing not only technology matured over a century, but also
quality confirmed by authorities, the legal system and by institutes.
seca products comply with European directives, standards and national laws. With seca,
you are buying the future.
The products in these operating instructions com-
ply with German legislation governing medical
products and therefore with Directive 93/42/EEC
of the Council of the European Community which
is embodied in national laws throughout Europe.
Scales carrying this symbol are approved for med-
ical purposes in the European Community. seca
scales with this symbol meet the stringent quality
and technical requirements placed on scales which
can be calibrated.
Scales carrying this symbol are calibrated in ac-
cordance with Precision Class III of EC Directive
90/384/EEC.
Products carrying this symbol comply with the fol-
lowing directives and standards:
1. Directive 90/384/EEC governing non-auto-
matic weighing instruments
2. Directive 93/42/EEC governing medical
devices
3. DIN EN 45501 governing metrological
aspects of non-automatic scales
seca’s professionalism has also been officially re-
cognized. The certificate from TÜV Product Ser-
vice, the body responsible for medical devices,
confirms that as a manufacturer of medical de-
vices, seca rigorously complies with stringent le-
gal requirements. seca’s quality assurance
system covers the development, production, sa-
les and service of medical scales and measuring
systems and ergometry.
seca helps the environment.
We are concerned to save natural resources. We
therefore strive to save packaging material where
meaningful. What is left over can conveniently be
disposed of locally via the German Dual System
(recycling programme).
M
ISO
9001
ISO
13485

16
English
1. Congratulations!
In the seca 799 electronic personal scale,
you have purchased a high-precision yet
sturdy piece of equipment.
seca has been putting its experience at
the service of health for over 150 years
now, and as market leader in many coun-
tries of the world, is always setting new
standards with its innovative develop-
ments for weighing and measuring.
In accordance with national regulations, the
seca 799 electronic personal scale is used
primarily in hospitals, doctors’ surgeries
and in-patient nursing facilities. The scales
are a Class I medical product, and have
been calibrated in accordance with the
precision class III.
Weight is determined within a few
seconds.
In addition to the conventional determina-
tion of weight, the seca 799 also has a
function for determining body mass index.
For this purpose, height is entered on the
keypad and the body mass index associ-
ated with the weight value is output.
The scale is of a very sturdy construction
and will give you long and loyal service. It
is easy to operate and the large display is
easy to read.
The seca 799 can be moved on castors,
and its low power consumption means
that it can be used on a mobile basis with
batteries for long periods.
2. Safety
Before using the new scale, please take a little time to read the following safety instruc-
tions.
• Follow the instructions in the instruc-
tions for use.
•Keep the operating instructions and the
declaration of conformity in a safe
place.
• Do not drop the scale or subject it to
violent shocks.
•Use only the type of battery stated (see
“Changing the batteries” on page 24).
• Have scale serviced and re-calibrated
on a regular basis (see chapter entitled
“Servicing/recalibration” on page 24).
•Have repairs carried out only by author-
ised persons.

Model 799 17
GB
3. Before you start…
Unpacking
Remove the packaging and place the
scale on a firm, level surface.
The scope of supply includes:
• Weighing platform
• Column with display head
• 1 WAF 5 Allen key
• 2 mounting screws
• Battery holder containing
6 mignon-type AA 1.5 V batteries
Power supply
The scale is generally powered by batteries.
The LC display has a low power consumption – 10,000 weighing operations can be per-
formed with one set of batteries.
–Carefully turn over the scale so that the
base of the scale is accessible.
–Push the battery compartment closure
towards “Battery” and open the cover.
–Connect the cable to the holder and
batteries.
–Place the holder in the battery compart-
ment.
–Close the cover and then turn the scale
back up the right way.
Note: the scale is prepared for use with a seca mains unit which is available as
an accessory.
The connection socket for the mains unit is
in the base of the scale.
Note: the mains unit can also be used
with the batteries in place without the
scale or batteries being damaged.
plug-in
mains unit
scale from
underneath

18
Fitting the column
The column and display head are fitted to the weighing platform.
–Guide the connecting cable through the
opening.
–Place the column in the recess. The
display should be legible for people
standing on the scale.
–Screw the column to the weighing plat-
form from underneath.
–If necessary, lay the scale carefully on
its side to tighten up the screws.
–Connect the plug of the connecting
cable to the rear of the scale.
– Then place the scale upright again.
4. Setting up and aligning the scale
– Place the scale on a level surface.
–Unfix the locknuts above the four foot
screws (1).
–Align the scale by screwing the foot
screws. The air bubble in the spirit level
must be right in the centre of the
circle (2).
– Then re-tighten the locknuts (3).
–Ensure that only the feet of the scale are
in contact with the floor. The scale may
not be in contact at any other point.
Important!
The alignment of the base of the scale
must be checked and corrected if nec-
essary every time the location of the
scale is changed.
1.
2.
3.
spirit level

Model 799 19
GB
5. Operation
Controls and displays
The controls and the display are on the display head on the column.
Switch scale on and off
press briefly sswitch between weighing range 1 and 2
in function menu sincrease value
press briefly sactivate/deactivate hold function
hold down sset display to zero, activate/deactivate tare function
in function menu sdecrease value
Activation of BMI function and Enter key for input data

20
Correct weighing
–Press the Start key with no load on the
scale.
se(a, 8.8.8.8.8. and 0.0 appear consec-
utively in the display. The scale is then
automatically set to zero and ready to
use.
–If necessary, switch the weight display
(see page 20).
– Stand on the scale and keep still.
–Read the weighing result off the digital
display.
–If a load greater than 150 kg or 200 kg
is placed on the scale, St0P appears in
the display.
–To switch off the scale, press the Start
key again.
Switching the weighing range
The seca 799 has two weighing ranges which can be selected. Weighing range 1 has a
reduced maximum capacity but greater display resolution, whilst weighing range 2 allows
you to use the maximum load capacity of the scale. Depending on the application in ques-
tion, you decide whether you would prefer to use the fine display resolution or the high
load range.
–Switch on the scale at the green Start
key. The scale initially operates in the
weighing range last selected.
–To change the weighing range, press
the key
–The weighing range active in each case
is shown in the display.
Note:
It is possible to switch from Range 1 with fine graduations to Range 2 with coarse grad-
uations with a load on the scale unless the scale is switched to a special function (like BMI,
for example). For technical reasons, it is only possible to switch from coarse Range 2 to
fine Range 1 with no load on the scale. In this case too, no special function may be acti-
vated.

Model 799 21
GB
Automatic switch-off/economy mode
The scale automatically detects whether it is being operated on batteries or whether it is
connected to the mains.
– Operation on batteries: automatic shut-down after 30 seconds.
– With mains operation: shut-down only via keypad.
Taring weight display (TARE)
The tare function is very useful, for example for determining the weight of a child or other
object placed on the scale in addition to yourself.
Proceed as follows:
–Press the Start key with no load on the
scale.
–First stand on the scales yourself with-
out the additional weight and activate
the Tare function by depressing and
holding the HOLD/TARE key.
The display is reset to zero. 0.0 appears
in the display. The note “NET” appears.
–Now take the additional load onto the
scale. You can leave the scale to do so,
in which case ---- appears.
The scale determines the weight of the
additional load.
You can now perform as many weigh-
ing operations as you like.
–Hold the key down again to deactivate
the Tare function; the scale is then back
in normal weighing mode and the tare
value has been erased.
–The tare value is likewise erased by the
scale being switched off.
Store weight value (HOLD)
You can also continue displaying the weight determined once the load has been removed.
This makes it possible to look after a patient first, before having to note the weight.
–Press the HOLD/TARE key whilst the
load is on the scale.
“HOLD“ appears in the digital display.
The value is stored until the scale
switches off automatically (operation on
batteries).
The triangle with the exclamation mark
indicates that this frozen display is an
additional facility which is not subject to
calibration.

22
–The HOLD function can be switched off
by pressing the HOLD/TARE key
again.
0.0 appears in the display if the scale
has no load on it, otherwise the current
weight. The “HOLD“ display vanishes.
Body Mass Index (BMI)
Body Mass Index puts height and weight in relationship to one another, providing more
accurate information than ideal Broca weight, for example. A tolerance range is given
which is considered ideal for health.
–Press the Start key with no load on the
scale.
se(a, 8.8.8.8.8. and 0.0 appear con-
secutively in the display. The scale is
then automatically set to zero and ready
for operation.
– Press the FUNC key.
On the display, you will see the last
height entered.
–You can use the arrow keys to adjust
the value in increments according to the
graduations displayed.
–Once the correct value is set, press the
FUNC key again. The BMI function is
now activated.
–Ask the patient to mount the scale.
Once on the scale, the patient should
stand still.
–Read off the BMI on the digital display
and compare it with the categories on
page 22.
–To return to normal weighing mode,
press the FUNC key.
–To switch off the scale, press the Start
key again.
Evaluating Body Mass Index for adults:
Compare the value determined with the categories quoted below which correspond to
those used by WHO, 2000.
• BMI below 18.5:
Warning, this patient weighs too little. There could be a tendency to anorexia. An in-
crease in weight is recommended to improve well-being and performance. If in doubt,
consult a specialist.
• BMI between 18.5 and 24.9:
The patient is of a normal weight. He can stay as he his.

Model 799 23
GB
•BMI between 25 and 30 (pre-obese):
The patient is slightly to moderately overweight. He should cut his weight if he is
already ill (e.g. diabetes, hypertension, gout, fat metabolism disorders).
• BMI over 30:
Weight reduction is essential. Metabolism, cardiovascular system and bones are all un-
der strain. A consistent diet, plenty of movement and behavioural training are all rec-
ommended. If in doubt, consult a specialist.
6. Cleaning
Clean the rubber surface and the housing as required using a domestic cleaning agent or
commercially-available disinfectant. Follow the manufacturer’s instructions.
Under no circumstances use abrasive or acid cleaners, white spirit, benzene or the like
for cleaning. Such substances can damage the high-quality surfaces.
7. What do I do if…
… no weight display comes on?
– Is the scale switched on?
– Check the batteries.
– Is the plug contact on the scale properly connected??
… 0.0 does not appear before the weighing operation?
– Press the Start key again – there must not be any load on the scale
… ---- appears instead of 0.0 before weighing?
– Press the Start key again – there must not be any load on the scale.
… one segment is illuminated constantly or not at all?
– The relevant segment has a fault. Inform Servicing.
… the display shows ?
– Battery voltage is running low. Change the batteries in the next few days.
… batt appears in the display?
– Batteries are empty. Put in new batteries.
… St0p appears in the display?
– Maximum load has been exceeded.
… the display flashes?
–If you have just activated the Hold or Tare function, please wait until the scale has de-
tected a steady weight value. The display will then stop flashing.
–If there has been no activation of a function beforehand, remove the load from the scale
and wait until 0.0 is displayed, then weigh again.

24
… the display E and XX.XX appear?
–Switch off the scale with the Start key and start the scale again. The scale will then
work normally again.
If this is not the case, disconnect the power supply by briefly removing the batteries or
unplugging the mains supply from the scale. If this measure is equally unsuccessful,
inform the Service department.
8. Servicing/recalibration
Have the scale recalibrated by authorised persons in accordance with national legal re-
quirements. The year of initial calibration can be found behind the CE symbol on the rating
plate above the number of the appointed office, 0109 (Hessen Weights & Measures Of-
fice). Recalibration is essential if one or more security marks are damaged.
We recommend having your scale serviced by your local service agent before having it
recalibrated. seca Customer Service will be pleased to give you further assistance.
Changing the batteries
When or bAtt appear in the display, you should change the batteries. You need
6 type AA 1.5 V batteries.
–Carefully turn over the scale so that the
base of the scale is accessible.
–Push the battery compartment closure
towards “Battery” and open the cover.
– Take out the holder and batteries.
–Remove the used batteries and insert
new batteries in the holder.
Check that the polarity is correct.
–Place the holder and batteries in the
battery compartment.
– Close the cover.
–Then turn the scale back up the right
way.

Model 799 25
GB
9. Technical data
Dimensions
width: 292 mm
height: 830 mm
depth: 390 mm
Height of figures 20 mm
Weight approx. 6,8 kg
Temperature range +10 °C to +40 °C
Power supply Battery/mains unit (option)
Batteries 6 type AA 1.5 V batteries
Calibration as per Directive
90/384/EEC Class III medical approval
Medical product as per
Directive 93/42/EEC Class I
Maximum load
Weighing range 1 150 kg
Weighing range 2 200 kg
Minimum load
Weighing range 1 2 kg
Weighing range 2 4 kg
Graduations
Weighing range 1 100 g
Weighing range 2 200 g
Accuracy at first calibration
Weighing range 1:
up to 50 kg: ± 50 g
50 kg up to 150 kg: ± 100 g
Weighing range 2:
up to 100 kg: ± 100 g
100 kg up to 200 kg: ± 200 g
Functions Switching the weighing range, Tare, Hold
Body Mass Index

26
10. Spare parts and accessories
Power supply
Model dependent mains unit
Plug-in mains unit, Euro: 230V~ / 50Hz / 12V= / 130mA
seca no.: 68-32-10-252
Switchmode power adapter, 100-240V~ / 50-60Hz / 12V= / 0.5A
seca no. 68-32-10-265
Attention!
Use only seca original plug-in mains units with 9 V or controlled 12 V output voltage. Com-
mercially-available mains units may supply a higher voltage than stated and thus lead to
damage to the scale.
11. Disposal
Disposing of the device
Do not dispose of the device in
domestic waste. The device must
be disposed of properly as elec-
tronic waste. Follow the national regula-
tions which apply in your case. For further
information, contact our service depart-
ment at:
[email protected]
Batteries
Do not throw used batteries away in do-
mestic waste. Dispose of batteries at col-
lection points in the vicinity. When buying
new batteries, select those low in harmful
substances and containing no mercury
(Hg), cadmium (Cd) or lead (Pb).
12. Warranty
A two-year warranty from date of delivery
applies to defects attributable to poor ma-
terials or workmanship. All moveable parts
- batteries, cables, mains units, recharge-
able batteries etc. - are excluded. Defects
which come under warranty will be made
good for the customer at no charge on
production of the receipt. No further
claims can be entertained. The costs of
transport in both directions will be borne
by the customer should the equipment be
located anywhere other than the custom-
er’s premises. In the event of transport
damage, claims under warranty can be
honoured only if the complete original
packaging was used for any transport and
the scale secured and attached in that
packaging just as it was when originally
packed. All the packaging should there-
fore be retained.
A claim under warranty will not be hon-
oured if the equipment is opened by per-
sons not expressly authorised by seca to
do so.
We would ask our customers abroad to
contact their local sales agent in the event
of a warranty matter.